Foldable shelf unit or similar article



FIG. 1 is a top plan view of my foldable shelf unit or similar article in an unfolded position.

FIG. 2 is a front and rear side view of my shelf unit in an unfolded position.

FIG. 3 is a top plan view of my shelf unit in a folded position.

FIG. 4 is a front and rear side elevational view of my shelf unit in a folded position. 

The ornamental design for a foldable shelf unit or similar article, substantially as shown and described. 